Trigonometric functions of the general angle Student activity Play

Trigonometric functions of the sum and difference of angles (1) Whiteboard presentation Play

Trigonometric functions of the sum and difference of angles (1) Class activity Play

Trigonometric functions of the sum and difference of angles (2) Whiteboard presentation Play

Trigonometric functions of the sum and difference of angles (2) Class activity Play

Trigonometric ratios in a right-angled triangle Class activity Play

Trigonometric ratios in a right-angled triangle Whiteboard presentation Play

Trigonometry of a general angle Class activity Play

Trigonometry of a general angle Whiteboard presentation Play

Use of a calculator Class activity Play

Use of a calculator Whiteboard presentation Play

Using new variables to solve trigonometric equations Whiteboard exercise Play

Using the calculator Student activity Play

Using the calculator Whiteboard exercise Play

Using the double-angle formulas for the tangent to rewrite cosine Whiteboard exercise Play

Using the double-angle formulas for the tangent to rewrite sine and cosine Student activity Play

Using the sum and difference identities for the sine and cosine Whiteboard exercise Play

Values of the sine and the cosine Animation Play